#include <stdio.h>

int main()
{
	char string[100];
	int i = 0;
	scanf("%s", string);
	for(i = 0; string[i] != '@'; i++)
	{
		if(string[i] >= 'A' && string[i] <= 'Z')
		{
			string[i] += 32; 	
		}
		if(string[i] >= 'a' && string[i] <= 'w')
		{
			string[i] += 3;
		}
		else if(string[i] >= 'x' && string[i] <= 'z')
		{
			string[i] -= 23;
		}
	}
	printf("%s", string);
	return 0;
}
